The film begins three decades prior, where a young Jack O’Malley (portrayed by Wyatt Hunt) excitedly ushers his cousins upstairs amidst the festive chaos of a family Christmas gathering. With childlike wonder, he reveals to them the truth about their presents—gifts not from Santa Claus, but from their very own parents. This mischief is quickly curtailed by Uncle Rick (played by Marc Evan Jackson), who sternly reprimands Jack for ruining the magic of the season.
Fast forward to present day, our adult Jack (brought to life by Chris Evans), now a skilled tracker, employs his crafty antics to evade mall security. In a rather disheartening display, Jack sets a Christmas tree ablaze to create a diversion, sneaking into the mall to place a device that furthers his ulterior motives. In an act reflecting his morally questionable character, he even swipes candy from a baby as he navigates through the throngs of holiday shoppers.
Meanwhile, at the mall, the beloved Santa, affectionately known as Red One (depicted by J.K. Simmons), is enduring his annual holiday duty—his charm soon put to the test by the horde of overly zealous gift-seekers. His steadfast bodyguard, Callum Drift (played by Dwayne Johnson), the elite protector from the North Pole's E.L.F., observes the chaos with growing disgust. Callum's dedication to safeguarding Santa is so fierce that he’s willing to intimidate a self-absorbed influencer, proving that he takes this role as seriously as the festive spirit deserves.
Returning to his New York apartment, Jack receives a call from his enigmatic employer, who reveals that he will only receive half the payment for a job that remains cloaked in mystery—the other half dependent on the successful completion of the task. This sets in motion a chain of events that will pull Jack back into the heart of the holiday season.
As Callum and Santa retreat back to the North Pole—concealed behind a magical forcefield—they are warmly greeted by Mrs. Claus (brought to life by Bonnie Hunt). During a heartfelt exchange, Callum discloses his intentions to step down from his position due to his disillusionment with the spirit of the holiday. Santa, embodying the essence of hope, encourages him not to give up on the magic.
However, the tranquil backdrop of the North Pole is shattered as a gang of mercenaries breach the forcefield, leading to a frantic search when Santa mysteriously disappears. Zoe Harlow (played by Lucy Liu), Director of the MORA (Mythological Oversight and Restoration Authority), arrives in the midst of the chaos. She insists that they must locate Jack, known as “The Wolf,” within a ticking clock of 24 hours until Christmas Eve.
Back in Jack's world, a sudden crisis unfolds as he fields a call from his ex, Olivia (portrayed by Mary Elizabeth Ellis), concerning their son, Dylan (played by Wesley Kimmel), who has gotten himself into trouble at school. Confronted with the repercussions of parental absence, he offers half-hearted advice, revealing a profound regret that lingers over his role as a father.
Jack soon finds himself ambushed by North Pole mercenaries who seek to bring him to justice for his dubious reputation as a “Level 4 Naughty Lister.” After a brief scrimmage, he's brought to the North Pole, where the gravity of Santa's abduction sinks in. Initially incredulous, Jack’s skepticism is shattered as he discovers the truth: mythical creatures exist, and a grave situation demands his immediate action.
Meanwhile, Santa awakens imprisoned by a mysterious girl, Gryla (portrayed by Kiernan Shipka), who captures his essence using a mythical snow globe, the infamous glaskafig, intended to empower her nefarious schemes.
Begrudgingly, Callum and Jack pair up to mount a rescue mission, embarking on a fantastical journey that leads them to Aruba where Jack confronts Ted (played by Nick Kroll), the middleman in the dark dealings. Their encounter prompts a revelation about the formidable Christmas Witch, Gryla, who poses a dire threat to Santa and the holiday as a whole.
In a pivotal scene, madness ensues as monstrous snowmen emerge from an ice cream truck to challenge the duo. As the battle unfolds, it showcases Jack and Callum's growing camaraderie—Jack cultivates an unexpected ability to harness the holiday spirit, while Callum embraces the thrill of adventure.
With growing stakes, the narrative unveils Gryla's plot; she has sinister plans to utilize Santa for her own means, intending to spread her dark gift across the globe. As Callum and Jack race against time, the bonds of family and friendship forge a compelling thread through their desperate quest to rescue Santa, showcasing growth, redemption, and the enduring magic of Christmas.
The exhilarating climax takes place at the North Pole, where a final showdown ensues featuring the main adversaries, leading to a breathtaking conclusion where good ultimately triumphs over evil. In a final act of unity, Santa, Callum, Jack, and Dylan reclaim the spirit of Christmas, traveling around the world to spread joy and restore faith in the magic of the season, ensuring all ends on a cheerful note.
